* {
    margin: 0;
    padding: 0;
    -webkit-overflow-scrolling: touch;
}
body {
    margin: 0;
    padding: 0;
}
.layer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: #fff;
}
.game-tit {
    text-align: center;
    font-weight: normal;
    color: #399;
    font-size: 40px;
    margin-top: 100px;
    text-shadow: 0 0 5px #399;
    margin-bottom: 40px;
}
.btn {
    display: block;
    font-size: 25px;
    color: rgb(191, 224, 159);
    width: 150px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    border: 1px solid rgb(159, 224, 168);
    border-radius: 3px;
    -webkit-box-shadow: 0 0 5px rgb(159, 224, 168);
    box-shadow: 0 0 5px rgb(159, 224, 168);
    margin: 0 auto;
    text-decoration: none;
    -webkit-transform: scale(1.5);
    transform: scale(1.5);
    -webkit-animation: toBtn 2s infinite;
    animation: toBtn 2s infinite;
}
@-webkit-keyframes toBtn {
    0% {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
    50% {
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }
    100% {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}
@keyframes toBtn {
    0% {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
    50% {
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
    }
    100% {
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}
.layer p {
    width: 100%;
    font-size: 12px;
    text-align: center;
    color: #999;
    position: absolute;
    bottom: 20px;
}
